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From: Patrick McHardy <kaber@trash.net>
To: elendil@planet.nl
Cc: Andrew Morton <akpm@linux-foundation.org>,
	netdev@vger.kernel.org,
	"bugme-daemon@kernel-bugs.osdl.org"
	<bugme-daemon@bugzilla.kernel.org>
Subject: Re: [Bugme-new] [Bug 8519] New: NAT prerouting over tun interface broken
Date: Tue, 22 May 2007 00:28:07 +0200	[thread overview]
Message-ID: <46521CF7.3070601@trash.net> (raw)
In-Reply-To: <20070521131343.cbf3bcaa.akpm@linux-foundation.org>

Andrew Morton wrote:
> On Mon, 21 May 2007 13:05:36 -0700
> bugme-daemon@bugzilla.kernel.org wrote:
> 
>>Problem Description:
>>I have the hercules s/390 emulator running on an EM64T host, both running 
>>Debian unstable. I use a tun interface, a second IP address on eth0 and 
>>iptables/nat so the emulator has it's own address on my local network.
>>
>>With 2.6.21.1 on the host, networking between the emulator and the host system 
>>is fine (I can ssh from the host into the emulator without problems), but 
>>communication from the emulator with other boxes is broken. Other boxes also 
>>don't see the emulator if I ping its external address.
>>
>>If I ping another box on my LAN from the emulator while running wireshark on 
>>the host, I can see that:
>>- the echo request gets sent OK
>>- the other box replies OK
>>- the host receives the echo reply
>>- but the tun interface never gets it.
>>
>>If I boot the host with 2.6.20 everything works fine again.


Please post the output of lsmod and cat /proc/net/ip_conntrack after
sending a ping.


      reply	other threads:[~2007-05-21 22:28 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <200705212005.l4LK5aJk029945@fire-2.osdl.org>
2007-05-21 20:13 ` [Bugme-new] [Bug 8519] New: NAT prerouting over tun interface broken Andrew Morton
2007-05-21 22:28   ` Patrick McHardy [this message]

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